Atoms and the Periodic Table

The _______________________ are slightly reactive, but not very dangerous.

How many neutrons does zirconium (Zr) have?

____________________ is the ability of a metal to be pulled into a long, thin wire

Revised the atomic model to include specific orbits or “shells” for electrons.

How many protons does silver (Ag) have?

Find the neutron.

Discovered the neutron, which was the final piece of the modern atomic model.

The atomic number of an element always tells you an atom's...

Arranged the first periodic table by atomic mass.

____________________ is the gradual breaking down of metal.

How many electrons does manganese (Mn) have?

Discovered the electron and created the “berries in a muffin” model to describe the structure.

Find the electron.

Performed the “gold foil” experiment & discovered that atoms have a central nucleus.

What is the location of tin (Sn)?

____________________ is the ability of a metal to transfer heat or electricity.

In general, the _______________________ have properties of both metals and nonmetals.

Find the proton.

____________________is the ability of a metal to be bent, folded, etc. to change its shape.

In general, the _____________________ are very important for modern industry and technology.

His atomic theory contained 4 observations/inferences regarding atoms.

According to the trend of the periodic table, which of these has the largest atomic size?